Breathing and Respiration / Breathing and Exchange of Gases: MCQs Test – 1 11


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NEET Breathing and Respiration Questions (MCQs) | Online MCQs test on Breathing and Exchange of Gases (Class 11) | Online MCQs Test no. 01

Human Respiratory System: MCQs Quiz - 1

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Question 1
Which of the following statements is true about Trachea in a respiratory system?
A
It functions as passages of air to each alveolus
B
It functions for sound production
C
It Acts as passage of air to bronchi
D
It Lowers the surface tension
Question 2
______ lies in front of esophagus.
A
Trachea
B
Glottis
C
Larynx
D
Epiglottis
Question 3
Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on
A
Membrane potential
B
Accumulation of K ions
C
Proton gradient
D
Accumulation of Na ions
Question 4
Cilia and mucous are found in ______.
A
Trachea
B
Glottis
C
Larynx
D
Epiglottis
Question 5
Dissociation curve shifts to the right when
A
CO2 concentration decreases
B
CO2 concentration increases
C
O2 concentration decrease
D
CL concentration increase
Question 6
Due to breakdown and collapse of ______ lung tissue is destroyed.
A
eustachian tubes
B
bronchioles
C
alveoli
D
microtrachea
Question 7
During expiration the diaphragm becomes
A
Dome-shaped
B
Flattened
C
Normal
D
Oblique
Question 8
During pneumonia which of the following gets accumulated in lung tissue?
A
RBC
B
Fluid WBC
C
Blood
D
Plasma
Question 9
During swallowing of food, ______ is the opening covered by epiglottis.
A
trachea
B
glottis
C
larynx
D
epiglottis
Question 10
During which respiration, the respiratory pigment hemoglobin combines with oxygen in the lungs?
A
Aerobic cellular
B
External
C
Internal
D
Circulatory
Question 11
Each of the alveolar sac is surrounded by
A
capillaries
B
veins
C
arteries
D
primarily lymphatic ducts
Question 12
Enzyme carbonic anhydrase, in ______ speeds up the reaction.
A
Platelets
B
Leucocytes
C
Lymphocytes
D
RBCs
Question 13
Esophagus opens only during
A
speaking
B
exhaling
C
inhaling
D
swallowing
Question 14
Exchange of oxygen and carbon dioxide between alveolar air and blood is governed by _______.
A
diffusion
B
blood pressure
C
gravity
D
active transport
Question 15
Hamburger’s phenomenon is also called
A
Hydrogen shift
B
Bicarbonate shift
C
Chloride shift
D
Sodium shift
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11 thoughts on “Breathing and Respiration / Breathing and Exchange of Gases: MCQs Test – 1

  • barkha patil

    cool set of quests helpful thought provoking